WAGO-I/O-SYSTEM 750 Process Image 33
750-461 2AI Pt100/RTD
Manual
Version 1.4.1
4.3 I/O Modules for Resistance Measurement
Table 24: I/O Modules for Resistance Measurement
Resistance measurement
Measuring range: 10 Ω to 1.2 kΩ
Resistance measurement
Measuring range: 10 Ω to 5.0 kΩ
2-conductor connection only!
Resistance measurement can only be performed in 2-wire connection
technology.
4.3.1 Resistance Measurement 10 Ohm to 1.2 kOhm
The 750-461/000-002 version outputs the resistance values of the sensors
directly. The resistance values are displayed at a resolution of 1 digit per 0.1 Ω in
one word (16-bit). The possible numeric range corresponds to the defined
measurement range of 10 Ω to 1.2 kΩ.
Table 25: Process Image (10 Ω to 1.2 kΩ)
Resistance
Ω
Numeric value
Status
Byte
Hex.
LED
Error
AI 1, 2
“approx.” indicates non-calibrated data.